Wow, DuckDB v1.5 is going to be huge for geospatial people. It seems it got the ability to handle CRS like SedonaDB does. I didn't expect this would happen this early!
https://github.com/duckdb/duckdb/pull/20143
(Also, did you notice this pull request is on the DuckDB's main repo instead of duckdb/duckdb-spatial?)